DNA Marker Index information for Chromosome: Y Marker: Y21577.1Names and Aliases for this DNA Marker: Y21577.1, Y21577, rs923816422.Chromosome Position in hg38 Human Genome assembly1: 16285763.Chromosome Position in hg19 assembly2: 18397643 .Ancestral marker allele value: T.Derived, alternative, or mutated marker allele value: C.